21610120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{683}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 56142720

約数和(自身を除く): 34532600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 683, 791, 904, 1130, 1366, 1582, 2260, 2732, 3164, 3415, 3955, 4520, 4781, 5464, 6328, 6830, 7910, 9562, 13660, 15820, 19124, 23905, 27320, 31640, 38248, 47810, 77179, 95620, 154358, 191240, 308716, 385895, 540253, 617432, 771790, 1080506, 1543580, 2161012, 2701265, 3087160, 4322024, 5402530, 10805060, 21610120]

約数ペア:

[(1, 21610120), (2, 10805060), (4, 5402530), (5, 4322024), (7, 3087160), (8, 2701265), (10, 2161012), (14, 1543580), (20, 1080506), (28, 771790), (35, 617432), (40, 540253), (56, 385895), (70, 308716), (113, 191240), (140, 154358), (226, 95620), (280, 77179), (452, 47810), (565, 38248), (683, 31640), (791, 27320), (904, 23905), (1130, 19124), (1366, 15820), (1582, 13660), (2260, 9562), (2732, 7910), (3164, 6830), (3415, 6328), (3955, 5464), (4520, 4781)]